Corporation Tax: a starting map for directors

Start with the activity date

Corporation Tax responsibilities usually depend on when the company starts doing business, not only the incorporation date. Keep evidence of the first trading activity and check the current HMRC definition and registration process.

Do this now

1. Record the incorporation date and the date business activity began.
2. Check what HMRC requires the company to do and by when using the live official guidance.
3. Set up bookkeeping that separates income, costs, assets, money owed and transactions with directors.
4. Create separate reminders for the accounting period, tax payment and Company Tax Return.
5. Put aside tax through the year using a cautious estimate, then update it as profit changes.

What good looks like

The company has its tax reference information, understands which period is covered and has a reliable transaction record. The director and accountant know who prepares, approves, pays and files each item.

Common mistakes

• Assuming Companies House automatically completes every HMRC action.
• Using the accounts filing deadline as the tax payment date.
• Taking dividends without checking available profits and the required records.
• Treating money taken by a director as an unexplained business cost.
• Spending the amount likely to be needed for tax.

When to get professional help

Get tailored advice when the company has losses, grants, research and development, director loans, dividends, benefits, overseas activity, connected companies or a change of accounting date. Tax treatment depends on facts and can change.

Keep in your roadmap

Record official deadlines with their source, plus an earlier internal date for complete books and accountant handover. Never rely only on a generic reminder.